generally come from one of 4 elements, or  Oz Health Guide  a blend thereof. • Carbohydrate food, which generate four energy per g • Proteins that generate 4 nutrient consumption per g • fat that generate 9 energy per g • Alcohol that produces 7 energy per g. So if someone happens to were to evaluate the macros (that is what the accessories above are) in the whole lot you ate, and added up the energy produced by each .